GRA-0001

$35.00

Minerals: Graphite on marble and sandstone
Dimensions: (92.00×85.72×16.48) mm for matrix
Weight:140g

Treatment: None
Origin: Grenville, Québec
Information: This graphite comes from a vein of graphite only in a marble and sandstone formation. The matrix is made of a graphite layer on marble. The graphite / marble proportion of the matrix is ​​approximately 65% for 35%.

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